42402280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5381}}^1$

素因数の和:5589

約数の個数: 32

約数和(自身を含む): 95907240

約数和(自身を除く): 53504960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5381, 7880, 10762, 21524, 26905, 43048, 53810, 107620, 215240, 1060057, 2120114, 4240228, 5300285, 8480456, 10600570, 21201140, 42402280]

約数ペア:

[(1, 42402280), (2, 21201140), (4, 10600570), (5, 8480456), (8, 5300285), (10, 4240228), (20, 2120114), (40, 1060057), (197, 215240), (394, 107620), (788, 53810), (985, 43048), (1576, 26905), (1970, 21524), (3940, 10762), (5381, 7880)]